scholarly journals NADPH Oxidases: Insights into Selected Functions and Mechanisms of Action in Cancer and Stem Cells

2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Magdalena Skonieczna ◽  
Tomasz Hejmo ◽  
Aleksandra Poterala-Hejmo ◽  
Artur Cieslar-Pobuda ◽  
Rafal J. Buldak
Keyword(s):  
Reactive Oxygen Species ◽  
Stem Cells ◽  
Tissue Regeneration ◽  
Mechanisms Of Action ◽  
Cell Physiology ◽  
Oxygen Species ◽  
Nadph Oxidases ◽  
Wide Range ◽  
Selected Functions ◽  
Complex Activities

NADPH oxidases (NOX) are reactive oxygen species- (ROS-) generating enzymes regulating numerous redox-dependent signaling pathways. NOX are important regulators of cell differentiation, growth, and proliferation and of mechanisms, important for a wide range of processes from embryonic development, through tissue regeneration to the development and spread of cancer. In this review, we discuss the roles of NOX and NOX-derived ROS in the functioning of stem cells and cancer stem cells and in selected aspects of cancer cell physiology. Understanding the functions and complex activities of NOX is important for the application of stem cells in tissue engineering, regenerative medicine, and development of new therapies toward invasive forms of cancers.

scholarly journals Arsenic trioxide as a novel anti-glioma drug: a review

2020 ◽  
Vol 25 (1) ◽  
Author(s):  
Yi Fang ◽  
Zhen Zhang
Keyword(s):  
Reactive Oxygen Species ◽  
Stem Cells ◽  
Arsenic Trioxide ◽  
Adverse Reactions ◽  
Glioma Cells ◽  
Mechanisms Of Action ◽  
Promyelocytic Leukemia ◽  
Oxygen Species ◽  
Tumor Stem Cells ◽  
Future Studies

Abstract Arsenic trioxide has shown a strong anti-tumor effect with little toxicity when used in the treatment of acute promyelocytic leukemia (APL). An effect on glioma has also been shown. Its mechanisms include regulation of apoptosis and autophagy; promotion of the intracellular production of reactive oxygen species, causing oxidative damage; and inhibition of tumor stem cells. However, glioma cells and tissues from other sources show different responses to arsenic trioxide. Researchers are working to enhance its efficacy in anti-glioma treatments and reducing any adverse reactions. Here, we review recent research on the efficacy and mechanisms of action of arsenic trioxide in the treatment of gliomas to provide guidance for future studies.

scholarly journals Ginger Oleoresin Alleviated γ-Ray Irradiation-Induced Reactive Oxygen Species via the Nrf2 Protective Response in Human Mesenchymal Stem Cells

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Kaihua Ji ◽  
Lianying Fang ◽  
Hui Zhao ◽  
Qing Li ◽  
Yang Shi ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Human Mesenchymal Stem Cells ◽  
Reactive Oxygen ◽  
Ros Generation ◽  
Oxygen Species ◽  
Ros Scavenging ◽  
Genes Encoding ◽  
Dna Strand

Unplanned exposure to radiation can cause side effects on high-risk individuals; meanwhile, radiotherapies can also cause injury on normal cells and tissues surrounding the tumor. Besides the direct radiation damage, most of the ionizing radiation- (IR-) induced injuries were caused by generation of reactive oxygen species (ROS). Human mesenchymal stem cells (hMSCs), which possess self-renew and multilineage differentiation capabilities, are a critical population of cells to participate in the regeneration of IR-damaged tissues. Therefore, it is imperative to search effective radioprotectors for hMSCs. This study was to demonstrate whether natural source ginger oleoresin would mitigate IR-induced injuries in human mesenchymal stem cells (hMSCs). We demonstrated that ginger oleoresin could significantly reduce IR-induced cytotoxicity, ROS generation, and DNA strand breaks. In addition, the ROS-scavenging mechanism of ginger oleoresin was also investigated. The results showed that ginger oleoresin could induce the translocation of Nrf2 to cell nucleus and activate the expression of cytoprotective genes encoding for HO-1 and NQO-1. It suggests that ginger oleoresin has a potential role of being an effective antioxidant and radioprotective agent.

scholarly journals A reactive oxygen species-generating, cyclooxygenase-2 inhibiting, cancer stem cell-potent tetranuclear copper(ii) cluster

2017 ◽  
Vol 46 (38) ◽  
pp. 12785-12789 ◽  
Author(s):  
C. Lu ◽  
K. Laws ◽  
A. Eskandari ◽  
K. Suntharalingam
Keyword(s):  
Reactive Oxygen Species ◽  
Stem Cells ◽  
Schiff Base ◽  
Stem Cell ◽  
Cancer Stem Cells ◽  
Cancer Stem Cell ◽  
Cancer Cells ◽  
Reactive Oxygen ◽  
Cyclooxygenase 2 ◽  
Oxygen Species

Tetranuclear copper(ii) complexes containing multiple diclofenac and Schiff base moieties,1–4, are shown to kill bulk cancer cells and cancer stem cells (CSCs) with low micromolar potency.

scholarly journals Reactive Oxygen Species as the Brainbox in Malaria Treatment

Antioxidants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1872
Author(s):  
Chinedu Ogbonnia Egwu ◽  
Jean-Michel Augereau ◽  
Karine Reybier ◽  
Françoise Benoit-Vical
Keyword(s):  
Reactive Oxygen Species ◽  
Metabolic Pathways ◽  
Reactive Oxygen ◽  
Mechanisms Of Action ◽  
Ros Generation ◽  
Oxygen Species ◽  
Pharmacological Activities ◽  
Antiparasitic Activity ◽  
Development Of Resistance ◽  
Antioxidant Machinery

Several measures are in place to combat the worldwide spread of malaria, especially in regions of high endemicity. In part, most common antimalarials, such as quinolines and artemisinin and its derivatives, deploy an ROS-mediated approach to kill malaria parasites. Although some antimalarials may share similar targets and mechanisms of action, varying levels of reactive oxygen species (ROS) generation may account for their varying pharmacological activities. Regardless of the numerous approaches employed currently and in development to treat malaria, concerningly, there has been increasing development of resistance by Plasmodium falciparum, which can be connected to the ability of the parasites to manage the oxidative stress from ROS produced under steady or treatment states. ROS generation has remained the mainstay in enforcing the antiparasitic activity of most conventional antimalarials. However, a combination of conventional drugs with ROS-generating ability and newer drugs that exploit vital metabolic pathways, such antioxidant machinery, could be the way forward in effective malaria control.

scholarly journals NADPH oxidases (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database

2019 ◽  
Vol 2019 (4) ◽  
Author(s):  
Albert Van der Vliet
Keyword(s):  
Reactive Oxygen Species ◽  
Hydrogen Peroxide ◽  
Thyroid Hormone ◽  
Thyroid Gland ◽  
Oxygen Species ◽  
Nadph Oxidases ◽  
Thyroid Hormone Biosynthesis ◽  
Production Of Hydrogen ◽  
Nadph Oxidase Complex ◽  
Hormone Biosynthesis

The two DUOX enzymes were originally identified as participating in the production of hydrogen peroxide as a pre-requisite for thyroid hormone biosynthesis in the thyroid gland [6].NOX enzymes function to catalyse the reduction of molecular oxygen to superoxide and various other reactive oxygen species (ROS). They are subunits of the NADPH oxidase complex.

scholarly journals Mitochondrial Reactive Oxygen Species Mediate Cardiomyocyte Formation from Embryonic Stem Cells in High Glucose

Stem Cells ◽  
2010 ◽  
pp. N/A-N/A ◽  
Author(s):  
Francisco Luna Crespo ◽  
Veronica R. Sobrado ◽  
Laura Gomez ◽  
Ana M. Cervera ◽  
Kenneth J. McCreath
Keyword(s):  
Reactive Oxygen Species ◽  
Stem Cells ◽  
Embryonic Stem Cells ◽  
High Glucose ◽  
Embryonic Stem ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Mitochondrial Reactive Oxygen Species
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